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belka [17]
4 years ago
9

(01.07)

Mathematics
1 answer:
inna [77]4 years ago
4 0
Answer: Associative Property of Addition

We basically have 2+x+y on each side. The difference is the use of parenthesis in different places. With addition, we can add in any order we want and that includes grouping terms as well. For example
(2+3)+5 = (5)+5 = 5+5 = 10
2+(3+5) = 2+(8) = 2+8 = 10

So that's why in general (2+x)+y = 2+(x+y) is true for all real numbers x and y.
You might be interested in
A line has a slope of 5 and passes through the point (0,9). What is its equation in
kolbaska11 [484]

Answer:

y=5x+9

Step-by-step explanation:

Firstly, we have to use the equation y=mx+b, where m is the slope and b is the y intercept.

We know that m=5, x=0 and y=9.

So why not plug them into the equation to find b?

9=5(0)+b

9=0+b

9=b

Therefore, y=5x+9 is your final answer.

7 0
3 years ago
Can someone answer for me please, if you're great at math.
jonny [76]
Assuming that c is the length of AB (as is usually the case in the angle-side notation for triangles):
If sin(35) = 12/c, we can transform by multiplying both sides by c, and dividing both by sin(35) to get
c = 12/sin(35)
Evaluating using a calculator gives 20.92 units.
3 0
3 years ago
add simplify if possible I've already posted this once and I don't know what the answer was correct as somebody can do this I wi
elena55 [62]

Answer: 15 + 53/77


Step-by-step explanation:


Multiplying a fraction by 1 does not change the value.

Any number divided by itself is 1.

For instance, 11/11 = 7/7 = 1.


12 + 1/7 + 3 + 6/11 = 15 + 1/7 + 6/11

= 15 + (11×1)/(11×7) + (7×6)/(7×11)

= 15 + 11/77 + (6×7)/77

= 15 + (11 + 6×7)/77

= 15 + 53/77


It is faster to make sure to multiply by the "smallest" form of one that will work, but you don't have to. You only need to make sure that at the end there are no common factors in numerator and denominator, and that numerator is smaller than denominator.

6 0
4 years ago
Read 2 more answers
A cactus casts a
IgorC [24]

Answer:

It’s 81862

Step-by-step explanation:

3 0
3 years ago
Help plz for 20 points
kari74 [83]
This is right btw .’smkwkskakakakamammamamamamamamammamamama
7 0
3 years ago
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